Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#2 Re: Jokes » How many arms do I have? » 2016-07-28 15:30:54

InspectorCthulhu wrote:

I have two arms, but I also have two fore-arms
2+ (2x4) = 10 so I have 10 arms
10 is certainly an odd number of arms to have, but 10 is also an even number
The only number I know of that is both odd and even is infinity
So I must have an infinite number of arms....

Hahahah!!! smile So funny!

#3 Re: Help Me ! » Help With Problem » 2016-07-28 15:29:38

apsara123 wrote:

I need help with these problems...can you give detailed solution. Thank you!

1)In right triangle $MNO$, $\tan{M}=\frac{5}{4}$, $OM=8$, and $\angle O = 90^\circ$. Find $MN$. Express your answer in simplest radical form.

2)Points $A$ and $B$ are selected on the graph of $y = -\frac{1}{2}x^2$ so that triangle $ABO$ is equilateral. Find the length of one side of triangle $ABO$.

IMAGE:http://imgur.com/a/gLRIK

3)Find $\cos (-135^\circ)$.

Your latex or bbcode is not working! Can you fix that?

#4 Help Me ! » Digit Apartment Help » 2016-07-28 15:26:31

MathWA
Replies: 8

Nicole owns an apartment building with 29 units. She is playing new numbers on the doors. How many digits will she need to buy if she starts with one and skips thirteen?
I think the answer is 47, but the answer is 49!
Please show your work! Thank you!

#6 Help Me ! » Law of Sin Help » 2016-05-30 12:43:50

MathWA
Replies: 3

Find sides d and e and angle F if triangle DEF if angle D equals 32 degrees, angle E equals 108 degrees, and side f equals 12.
Round the length of the sides to three significant digits and degree measures to the nearest tenth.
I already figure out that angle F is 40 degrees.
Please help. Thank you!

#9 Help Me ! » 3-D pineapple chopping » 2016-05-25 14:39:01

MathWA
Replies: 2

In 1972, the Dole company produced a pineapple weighing a record of 9 pounds. If the pineapple was a cylinder, how many ways could the pineapple be cut into congruent sections of only four straight cuts are made?
Thanks.

#10 Help Me ! » Circles with MD » 2016-05-22 07:07:11

MathWA
Replies: 6

In the circle, minor arc RS=409, then mdW+mdT equals what?
Here's the image:


I don't understand what md means.
Please explain your work. Thank you!

The picture is on my AOPS forum:


[I added the url and the image - bobbym]

http://artofproblemsolving.com/communit … es_with_md

7017b5b9b880fd3fd63722a7ddfcdfbeee5fdd.png

#11 Re: Help Me ! » Geometry » 2016-05-22 07:02:15

Where is the picture?

Board footer

Powered by FluxBB